I don't suggest to be an authority on this subject but I wish to discuss three points: 1. I don't particular like the 'H' for half-hour daylight saving. Whether it's 30 minutes or 60 minutes, it's still daylight saving so I think only a 'D' is necessary. 2. For Lord Howe's daylight saving time, could we just report AEDT as it's the same time as Sydney, Canberra, etc? 3. Shouldn't we just stick to CW (Central West) instead of naming the zone to do with the town in the zone? Thank you. Kind Regards, David Grosz Sydney, Australia There are only 10 types of people in the world. Those who understand binary and those who don't. -----Original Message----- From: tz-bounces@iana.org [mailto:tz-bounces@iana.org] On Behalf Of Tobias Conradi Sent: 09 April 2013 06:29 To: tz@iana.org mailing list; David Patte Subject: [tz] Patched file australasia - time point unique abbreviations for Australia A public domain patched australasia file can be found via: http://anna.info/wiki/ANNA_time_zone_database The new abbreviations are: AEST/AEDT ACST/ACDT AWST/AWDT and currently without "A" prefix: CWST/CWDT - Eucla LHST/LHDT/LHHT - Lord Howe The letters before the final T mean: S - no daylight saving D - one hour daylight saving H - half hour daylight saving Error reports are welcome. Maybe someone can create a patch file. Some may favor using internationally disambiguated abbreviations, since AE might be interpreted as United Arab Emirates, AC as Ascension Island and AW as Aruba. It could also be desired to have constant length. Such internationally time point unique abbreviations could be used by CLDR for localization. The format could be "<country code><location><type>T" and a set for Australia, covering - except for LMTs (LMT=local mean time) - all times in the IANA time zone database could be: AUEST/AUEDT - East AUCST/AUCDT - Central AUWST/AUWDT - West AUUST/AUUDT - Eucla AUHST/AUHDT/AUHHT - Lord Howe -- Tobias Conradi Rheinsberger Str. 18 10115 Berlin Germany http://tobiasconradi.com/